enCore Energy Increases Uranium Extraction at Alta Mesa ISR Uranium Central Processing Plant; Appoints Director and Site Management

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DALLAS, April 7, 2025 /PRNewswire/ -- enCore Energy (NASDAQ: EU) (TSXV: EU) (the "Company" or "enCore"), announced today the results of the most successful month at the Alta Mesa In-Situ Recovery Uranium Central Processing Plant ("CPP") since commencing operations in June 2024. Following previously announced improvements to operations (see EU NR dated March 13, 2025) with the goal of expanding uranium extraction, decreasing unnecessary costs and increasing efficiency, the Company captured 50,000 pounds of uranium ("U3O8") in the last 26 days in March 2025.  With a healthy treasury including unencumbered cash, inventory and marketable securities of ~$40 million USD, the Company continues to improve Alta Mesa CPP operations and the wellfield development program, which is now on track to meet 2025 contract projections. The Company also announced the appointment of Rob Willette, Acting Chief Executive Officer ("A/CEO"), to the Board of Directors and the promotion of Daniel Calderon to Director of Texas Operations.  Mr. Willette will hold the Board seat dedicated to the Chief Executive Officer until such time a permanent appointment is made.

enCore Energy Corp. logo (CNW Group/enCore Energy Corp.)
enCore Energy Corp. logo (CNW Group/enCore Energy Corp.)

William M. Sheriff, Executive Chairman of enCore Energy stated: "The improvements at the Alta Mesa CPP are the result of a true team effort, led on site by an outstanding group of dedicated professionals. Mr. Calderon has taken on a key leadership role, managing day-to-day operations at both the Rosita and Alta Mesa CPP's. We also want to recognize the invaluable contributions of two of our Directors—Dr. Dennis Stover and Mark Pelizza—who bring decades of experience in In-Situ Recovery (ISR) operations. Their ongoing commitment and additional efforts have been instrumental in enhancing site operations and advancing permitting initiatives at the Texas state level."

Mr. Sheriff further added: "Mr. Willette has provided immense value to the Company in his role of Chief Legal Officer, and now A/CEO, assisting greatly with the transition to a U.S.-domiciled company. His understanding of the regulatory environment in the U.S. has been of great benefit to our team. I am pleased he has agreed to join the Board to provide continuity at the leadership level."

Alta Mesa CPP and Project highlights include:

  • Uranium capture of 50,000 pounds of uranium has been realized at the Alta Mesa CPP between March 6th and March 31st with one day offline due to power failures associated with torrential rain;

  • Average daily capture rate for the last 26 days of March 2025 was in excess of 1,900 pounds of uranium per day; this is the highest rate since the plant returned to operations in June of 2024;

  • In 2025, the Company has, as of this date, delivered 290,000 pounds of uranium under its contracts with utility companies. An additional 365,000 pounds of uranium is expected to be delivered for contracts through 2025. At the current extraction rate, it is expected that the Company will not purchase additional uranium in the market to meet 2025 contractual commitments;

  • The Company accelerated its August 2025 contract delivery requirements to May 2025 due to the improved uranium capture at the Alta Mesa CPP;

  • A total of 21 drill rigs are now in operation at the Alta Mesa Project; 14 drill rigs dedicated to wellfield installation and advancement of Wellfield 7 ("PAA-7"). 4 drill rigs are at Wellfield 8 ("PAA-8") focused on development drilling; 2 drill rigs are focused on Alta Mesa exploration and 1 drill rig is located at Upper Spring Creek;

  • Initial preparatory work commenced at the permitted Wellfield 6 ("PAA-6"), which was in operation in 2013 briefly, prior to operations at Alta Mesa being placed on stand-by due to low uranium prices. The Company looks forward to resuming operations of the fully permitted wellfield in Q4 2025 following necessary refurbishment and repairs.